JP6818596B2 - Bodyless rope detector and its method - Google Patents

Description

An embodiment of the present invention relates to, for example, a bodyless rope detecting device for detecting that a lanyard (body rope) of a safety belt worn by an aerial worker is unused (bodyless rope) and a method thereof.

A safety belt is used as a safety measure for workers in aerial work on temporary scaffolding and temporary stages, and in aerial work at openings where various devices and materials are carried in and out. Workers wear a safety belt and hang the hook of the lanyard (body rope) provided in this safety belt on a sturdy handrail, etc. to prevent a serious disaster in the unlikely event that a worker falls. doing.

However, the safety of the worker cannot be ensured when the worker does not hook the hook of the safety belt or forgets to hook it (the state without the rope).

Therefore, conventionally, it is monitored whether or not the hook of the safety belt is hooked when the worker is in the aerial work area or the dangerous area, and if the hook is not hooked, a warning is issued. A safety belt usage monitoring system is being considered.

JP-A-2009-165517 Japanese Unexamined Patent Publication No. 2014-004006 Japanese Unexamined Patent Publication No. 2014-150960 Japanese Unexamined Patent Publication No. 2015-204997

In the conventional safety belt usage monitoring system, a plurality of transmission / reception devices are installed around the aerial work area to be monitored, or information obtained by the transmission / reception devices is collected outside the temporary scaffolding or at the entrance / exit. Since it is necessary to install a management computer that monitors the usage status of the safety belt in the area, the entire system becomes large-scale.

In such a system, for example, when constructing or renovating a large structure for a long period of time, the scaffolding remains temporarily installed for a long period of time, so even if it is a large-scale system, the installation period is long. There is no problem for a long time. However, for example, when working while moving from place to place, including scaffolding, in a short construction period, it is necessary to re-install the entire system each time the place is moved, and there is a problem that introduction of such a system is not realistic. ..

The problem to be solved by the present invention is that even if the work area changes in a short period of time, it is possible to easily and surely notify the worker of the state of no body rope without the need to re-install a large-scale system. It is an object of the present invention to provide a non-body rope detection device and a method thereof.

The non-body rope detection device of the embodiment has a battery power source, an external first communication device driven by the battery power source, and attached to a section to be detected by the bodyless rope, and a preset first range. A second communication means that wirelessly communicates within and a second communication device that is driven by the battery power source and wirelessly communicates with an external second communication device attached to a torso in a safety zone within a preset second range. When communication between the communication means and the first communication device is established by the first communication means and communication with the second communication device is established by the second communication means, the bodyless body. It is equipped with a non-body rope warning means that warns of the rope condition.

FIG. 6 is an external view showing an overall configuration of a no-body rope detection system at a work site using the no-body rope detection device 10 of the embodiment. The figure which shows by extracting the non-body rope detection device 10, the use zone determination device 20, and the bodyless rope situation determination device 30 of the bodyless rope detection system. The block diagram which shows the structure of the electronic circuit of the bodyless rope detection device 10. The flowchart which shows the non-body rope detection process of the bodyless rope detection device 10.

Hereinafter, the non-body rope detecting device of the embodiment will be described with reference to the drawings.

FIG. 1 is an external view showing an overall configuration of a no-body rope detection system at a work site using the no-body rope detection device 10 of the embodiment.

FIG. 2 shows the non-body rope detection device 10 of the bodyless rope detection system, the use zone determination device (first communication device) 20, and the bodyless rope status determination device (second communication device) 30 extracted. It is a figure.

The non-body rope detection system includes a bodyless rope detection device 10, a usage zone determination device 20, and a bodyless rope status determination device 30.

The no-body rope detection device 10 is attached to a safety belt SB used by the worker WM by fixing it to the body with a belt, and has a power supply function and a communication function (a transmission / reception function with an NFC tag such as an RFID tag (first. Second communication means)), has a voice output function.

The use zone determination device 20 is a locking tool for a single pipe of the handrail of the scaffold SF, which is a section (body rope use section) that requires the use of the body rope (lanyard) tw of the safety belt SB. It is detachably attached by 22 and has a communication response function (NFC tag 21 such as an RFID tag) for the non-body rope detection device 10.

The non-body rope status determination device 30 is attached to the base of a hook f at the tip of the body rope (lanyard) tw of the safety belt SB by strong patch-type adhesion or the like, and communicates with the bodyless rope detection device 10. It has a response function (NFC tag 31 such as an RFID tag).

The bodyless rope detection device 10 uses a communication function (first communication means) to establish a short-range communication Ce by callback with the use zone determination device 20, so that the bodyline of the safety belt SB It detects that it has invaded a section (a section using a torso) that requires the use of lanyard) tw. Here, the range (first range) of the torso rope use section is set by the communicable distance between the torso rope detection device 10 and the use section determination device 20, and is set to, for example, a range of a radius of 2 m.

Further, the bodyless rope detection device 10 uses a communication function (second communication means) to establish short-range communication Cs by a callback with the bodyless rope status determination device 30, whereby the body rope tw. It is detected that the hook f of the above is in the vicinity of the safety belt SB and the torso tw is not used, that is, the torso rope is not used. Here, the range for detecting the no-body rope state (second range) is set by the communicable distance between the no-body rope detection device 10 and the no-body rope status determination device 30, and the body rope tw is wound around the range. It is set according to the distance (for example, 50 cm) to the hook f in a state where it is completely wound by the taker Rw.

FIG. 3 is a block diagram showing a configuration of an electronic circuit of the no-body rope detection device 10.

The electronic circuit of the bodyless rope detection device 10 is composed of, for example, a one-chip semiconductor integrated circuit IC, and includes a control unit 11, a memory 12, a transmission / reception unit (first and second communication means) 13, an audio output unit 14, and an input. It is provided with a unit 15 and is driven by a battery power supply 16.

The control unit 11 has a timer function T, and controls the operation of each unit according to the no-body rope detection program 12a stored in the memory 12. In addition to the data of the non-body rope detection program 12a, the memory 12 is used to reliably determine that the worker WM has invaded the body rope use section (first time elapsed determination means). After confirming the data of the section invasion time <T1> 12b and the invasion of the worker WM into the torso use section, it is surely determined that the worker WM is in the no-knee state (second time elapsed determination means). The data of the no-body rope time <T2> 12c for doing so is stored.

Based on the voltage supplied from the battery power source 16, the transmission / reception unit 13 has a short-range communication Ce (first communication means) with the NFC tag 21 of the usage zone determination device 20 and the non-body rope status determination device 30. Short-range communication Cs (second communication means) with the NFC tag 31 of the above.

According to the control of the control unit 11, the voice output unit 14 repeatedly outputs an electronic voice (for example, "piyopiyo") for notifying the invasion of the compartment in a state where the invasion of the worker WM into the towline use compartment is confirmed (compartment). Intrusion notification means), and repeatedly output an electronic voice (for example, "It is a non-body rope. Please hook it!") That warns the non-body rope when the worker WM's non-body rope state is confirmed (no). Body rope warning means). It should be noted that the electronic voice notifying the intrusion into the compartment and the electronic voice warning the non-body rope may be output in an overlapping manner or may be switched and output.

The input unit 15 has two changeover switches for switching between the data of the used section intrusion time <T1> and the data of the non-body rope time <T2>, for example, in two stages.

In the bodyless rope detection device 10 configured in this way, the control unit 11 controls the operation of each unit in accordance with the instruction described in the bodyless rope detection program 12a, and the software and the hardware cooperate with each other. By operating, the non-body rope detection process including various functions as described in the following operation explanation is realized.

Next, the operation of the no-body rope detection device 10 having the above configuration will be described.

FIG. 4 is a flowchart showing the no-body rope detection process of the no-body rope detection device 10.

Whether or not the short-range communication Ce between the transmission / reception unit 13 and the use zone determination device 20 by the control unit 11 is established when the power is turned on by operating the power switch (not shown) of the no-body rope detection device 10. By this determination, the presence or absence of the worker WM invading the torso rope use section is detected (step S1).

Here, when the control unit 11 determines that the short-range communication Ce between the transmission / reception unit 13 and the use zone determination device 20 has been established, the intrusion of the worker WM into the torso rope use section is detected ( Step S1 (Yes)), the timer function T starts timing of the used compartment intrusion time <T1> (steps S2 and S3), and the control unit 11 closes the distance between the transmission / reception unit 13 and the no-body rope status determination device 30. By determining whether or not communication Cs is established, it is detected whether or not the worker WM is in a non-body rope state (step S4).

Here, for example, when the worker WM has just entered the torso rope use section or has just passed the torso rope use section, the transmission / reception unit 13 and the no-body rope status determination device 30 When the short-range communication Cs is established and it is detected that the worker WM is in a non-body rope state (step S4 (Yes)), the used section intrusion time <T1> timed by the timer function T has elapsed. Whether or not it is determined (step S5).

Then, when it is determined that the used section invasion time <T1> has not elapsed (step S5 (No)), the presence or absence of the worker WM invading the torso rope used section is repeatedly detected (step S6). ), When the invasion of the worker WM into the torso rope use section is continuously detected (step S6 (Yes)), it is repeatedly detected whether or not the worker WM is in the no-together state (step). S4).

Then, when it is determined that the worker WM is in a state of no body rope (step S4 (Yes)) and the use zone invasion time <T1> has elapsed (step S5 (step S5 (Yes)). Yes)), the voice output unit 14 repeatedly outputs the electronic voice "Piyopiyo" that notifies the worker WM of the confirmation of invasion into the torso use section, and uses the torso tw of the safety belt SB to the worker WM. Is prompted (step S7), and the timer function T starts timing the no-body rope time <T2> (steps S8 and S9).

Then, when it is determined that the worker WM is in the non-body rope state (step S4 (Yes)) and the bodyless rope time <T2> has elapsed (step S10 (step S10). Yes)), the voice output unit 14 warns the worker WM of the non-body rope. Hook it up! ] Is repeatedly output, and the worker WM is warned that the rope is in a state of no body (step S11).

After that, the worker WM hangs the hook f of the torso tw on the single pipe of the handrail of the scaffolding SF, the main rope, or the like to start the work, so that the torso tw winds up, for example, as shown in FIG. When it is pulled out from the machine Rw and extends, the short-range communication Cs between the transmission / reception unit 13 and the non-body rope status determination device 30 is cut off, and the non-body rope state of the worker WM is not detected (solved) (step S4). (No)), the time counting times T1 and T2 by the timer function T are reset (step S12), and the notification sound "piyopiyo" and the warning sound "non-body rope" by the voice output unit 14 are set. Hook it up! ] Is stopped (step S13).

Then, it is detected whether or not the worker WM is in the non-body rope state again (step S14).

Here, when the worker WM removes the hook f of the body rope tw from the handrail of the scaffolding SF, for example, in response to the completion of the work there, the body rope tw is wound around the winder Rw. Then, the short-range communication Cs between the transmission / reception unit 13 and the non-body rope status determination device 30 is restarted, and it is detected that the worker WM is in the non-body rope state again (step S14 (Yes)).

Then, the process returns from the beginning of the series of bodyless rope detection processes (step S1).

On the other hand, in step S6, (No), that is, in a state in which the intrusion of the worker WM into the torso rope use section is detected and the use section invasion time <T1> has not elapsed, for example, the work. When the intrusion is not detected because the member WM simply passes through the torso rope use section, the time counting time T1 by the timer function T is reset (step S15), and the process from the beginning of the series of torso rope detection processes. Return to (step S1).

After that, for example, even when the scaffolding SF is disassembled and reassembled in another place, the worker TW can easily work by attaching the use zone determination device 20 to the work area of the reassembled scaffolding SF. It is possible to reliably perform the same non-body rope detection process in the bodyless rope detection device 10 attached to the safety belt SB of the worker TW.

Since the used section determination device 20 can be inexpensively configured only by providing an IC tag such as an NFC tag 21, the scaffolding SF can be reassembled to another place or moved to another scaffolding SF to change the work area. Each time the change is made, a new use zone determination device 20 may be attached to the scaffold SF by adhesion or the like, and may be used as a disposable item.

Therefore, according to the non-body rope detection device 10 having the above configuration, the use zone determination device (NFC tag) that is detachably attached to the work area of the scaffold SF by the transmission / reception unit 13 of the short-range wireless communication driven by the battery power supply 16. ) By establishing a short-range communication Ce with 20, it is possible to detect the intrusion of the worker WM into the torso use section (high-altitude work area, etc.), and further, patch-type adhesion to the hook f of the torso tw, etc. The short-range communication Cs with the non-body rope status determination device (NFC tag) 30 attached by the above is established to detect the bodyless rope state of the worker WM.

Then, when the intrusion of the worker WM into the torso rope use section is detected, the voice output unit 14 outputs an electronic voice "Piyopiyo" notifying the worker WM to invade the torso rope use section, and further, the above-mentioned When the non-body rope state of the worker WM is detected, the voice output unit 14 warns the worker WM of the non-body rope state. Hook it up! ] Is output.

As a result, even if the work area changes in a short period of time, it is not necessary to re-install a large-scale system, and the worker WM is easily and surely notified of the intrusion into the torso use section, and there. Can warn of the state of no body rope.

Further, according to the non-body rope detection device 10 having the above configuration, the state in which the worker WM is detected to invade the body rope use section is the used section intrusion time <T1> stored in the memory 12. If it continues for a while, the voice output unit 14 outputs an electronic voice notifying the worker WM of invasion into the torso use section, so that the worker WM simply passes through the torso use section, for example. However, it is possible to prevent the notification voice from being output.

Further, according to the bodyless rope detecting device 10 having the above configuration, the state in which the bodyless rope of the worker WM is detected continues and elapses during the bodyless rope time <T2> stored in the memory 12. In this case, the voice output unit 14 outputs an electronic voice warning the worker WM of the non-body rope state, so that the worker WM invades the body rope use section and, for example, hooks f of the body rope tw. It is possible to prevent the warning sound from being output immediately when trying to hang it on the handrail of the scaffolding SF.

In the non-body rope detection device 10 having the above configuration, the content of the electronic voice notifying the intrusion of the worker WM into the body rope use section and the content of the electronic voice warning the worker WM of the bodyless rope state are The embodiment is not limited to any electronic sound or electronic voice.

Further, in the no-body rope detection device 10 of the above-described embodiment, the short-range communication Cs between the transmission / reception unit 13 and the no-body rope status determination device (NFC tag) 30 attached to the hook f of the torso tw is established. , It is determined that the body rope tw is completely wound by the winder Rw and is within a range of unused distances, and the state of the worker WM without a body rope is detected. The winder Rw may be provided with a switch that detects the pull-out of the body rope tw and turns ON or OFF, and detects the state of no body rope based on the operation of this switch.

The invention of the present application is not limited to each of the above-described embodiments, and can be variously modified at the implementation stage without departing from the gist thereof. Further, each of the above-described embodiments includes inventions at various stages, and various inventions can be extracted by an appropriate combination of a plurality of disclosed constituent requirements. For example, even if some constituent requirements are deleted from all the constituent requirements shown in each embodiment or some constituent requirements are combined in different forms, the problems described in the section of the problem to be solved by the invention Can be solved and the effect described in the effect of the invention can be obtained, the configuration in which this constituent requirement is deleted or combined can be extracted as the invention.

10 ... Non-body rope detector, 11 ... Control unit, 12 ... Memory,
12a ... Non-body rope detection program, 12b ... Used section intrusion time <T1>,
12c ... No body rope time <T2>, 13 ... Transmission / reception unit, 14 ... Audio output unit, 15 ... Input unit,
16 ... Battery power supply, 20 ... Usage zone determination device, 22 ... Locking tool,
30 ... No body rope situation judgment device, 21,31 ... NFC tag, SF ... Scaffolding, WM ... Worker,
SB ... Safety belt, tw ... Body rope (lanyard), f ... Hook, Rw ... Winder.

Claims (7)

Battery power and
A first communication means that is driven by the battery power source and wirelessly communicates with an external first communication device attached to a section to be detected by the non-body rope within a preset first range.
A second communication means driven by the battery power source and wirelessly communicating with an external second communication device attached to the torso in the safety belt within a preset second range.
When communication with the first communication device is established by the first communication means and communication with the second communication device is established by the second communication means, a no-body state is warned. No body rope warning means and
A non-body rope detection device equipped with. When communication with the first communication device is established by the first communication means, the section intrusion notification means for notifying the intrusion into the section is provided.
The non-body rope detection device according to claim 1. The compartment intrusion notification means includes a first time progress determining means for determining the passage of a preset first time when communication with the first communication device is established by the first communication means. Then, when the lapse of the first time is determined by the first time lapse determination means, the intrusion into the section is notified.
The non-body rope detection device according to claim 2. The non-body rope warning means has a second time lapse determination means for determining the lapse of a preset second time when the intrusion into the section is notified by the section intrusion notification means. When the passage of the second time is determined by the second time passage determination means, the state of no body rope is warned.
The non-body rope detection device according to claim 2 or 3. The non-body rope detecting device according to any one of claims 1 to 4, wherein the safety belt is detachably attached to the safety belt. The first communication device and the second communication device both have an IC tag for short-range wireless communication, and the first communication means and the second communication means are driven by the battery power source and the IC tag. The bodyless rope detection device according to any one of claims 1 to 5, further comprising a transmitting / receiving unit that wirelessly communicates with the user. It is a non-body rope detection method using a device driven by a battery power supply.
Using the battery power supply, wireless communication is performed within a preset first range with an external first communication device attached to a section to be detected by the non-body rope.
Using the battery power supply, wireless communication with an external second communication device attached to the torso in the safety belt within a preset second range.
When communication with the second communication device is established while communication with the first communication device is established, a warning about the state of no body rope is given.
A non-body rope detection method consisting of.